image

type Attr struct {
	Width   uint32 `json:"width"`
	Height  uint32 `json:"height"`
	Size    uint32 `json:"size,omitempty"` // Original size
	Quality uint8  `json:"qlt,omitempty"`  // Original quality
	Ext     string `json:"ext"`            // file extension include dot
	Mime    string `json:"mime,omitempty"` // content type
}

type CountWriter struct {
	// contains filtered or unexported fields
}

type Image struct {
	*Attr
	Format string
	// contains filtered or unexported fields
}

type Imager interface {
	SaveTo(w io.Writer, opt WriteOption) error
	ThumbnailTo(w io.Writer, topt ThumbOption) error
}

type Opacity uint8

type Position uint8

type ThumbOption struct {
	Width, Height       uint // 宽和高
	MaxWidth, MaxHeight uint // 最大宽和高
	IsFit               bool // 是否保持比例
	IsCrop              bool // 是否裁切
	CropX, CropY        int  // 裁切位置

	WriteOption
	// contains filtered or unexported fields
}

type WaterOption struct {
	Pos      Position
	Opacity  Opacity
	Filename string
	WriteOption
}

type WriteOption struct {
	Format  string
	Quality uint8
}